Anahuac Weather Records (MXN00019024)

Record envelope, standing records and threshold days for Anahuac (MXN00019024), Mexico, with 79 years of record.

Key Facts for Anahuac

Anahuac (MXN00019024) is a weather station in Mexico at 27.23 latitude and -100.12 longitude, 194 m (636 ft) above sea level.
The station reports from 1933 to 2011, 79 years of record.
1,464 records set at Anahuac still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Anahuac set a daily record high minimum temperature of 20.0 C (68.0 F) on 22 November 2011.

About the Station

Location: Mexico, 27.23 latitude, -100.12 longitude.
Elevation: 194 m (636 ft).
Period of record: 1933 to 2011, 79 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Anahuac. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Anahuac, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	38.9 C (102.0 F)	-11.1 C (12.0 F)	n/a	n/a
Feb	40.0 C (104.0 F)	-10.0 C (14.0 F)	n/a	n/a
Mar	42.2 C (108.0 F)	-3.3 C (26.1 F)	n/a	n/a
Apr	45.0 C (113.0 F)	0.6 C (33.1 F)	n/a	n/a
May	45.6 C (114.1 F)	4.4 C (39.9 F)	n/a	n/a
Jun	48.3 C (118.9 F)	8.9 C (48.0 F)	n/a	n/a
Jul	47.8 C (118.0 F)	15.0 C (59.0 F)	n/a	n/a
Aug	43.9 C (111.0 F)	15.0 C (59.0 F)	n/a	n/a
Sep	44.4 C (111.9 F)	8.9 C (48.0 F)	n/a	n/a
Oct	40.0 C (104.0 F)	-0.6 C (30.9 F)	n/a	n/a
Nov	37.8 C (100.0 F)	-3.9 C (25.0 F)	n/a	n/a
Dec	36.7 C (98.1 F)	-10.0 C (14.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Anahuac still stand. 1957 holds the most, with 95.

Standing records at Anahuac by the year they were set
Year set	Standing records
1933	9
1934	9
1935	14
1936	12
1937	17
1938	22
1939	22
1940	25
1941	16
1942	14
1943	5
1944	14
1945	27
1946	15
1947	26
1948	27
1949	29
1950	55
1951	63
1952	21
1953	27
1954	8
1955	3
1956	8
1957	95
1958	12
1959	40
1960	21
1961	16
1962	10
1963	27
1964	21
1965	20
1966	22
1967	16
1968	12
1969	19
1970	16
1971	17
1972	11
1973	18
1974	10
1975	18
1976	22
1977	8
1978	16
1979	11
1980	15
1981	14
1982	16
1983	21
1984	6
1985	8
1986	12
1987	19
1988	9
1989	33
1990	23
1991	26
1992	9
1993	17
1994	20
1995	33
1996	31
1997	11
1998	40
1999	13
2000	34
2001	7
2002	11
2003	8
2004	7
2005	10
2006	3
2008	7
2009	5
2010	6
2011	24

All-Time Record Progression

4 new records

4 all-time records were set at Anahuac between 12 September 1971 and 28 June 2004. Each dot is a new record.

When Anahuac set new all-time records
Date	Kind	Detail
1971-09-12	Record daily precipitation	Record daily precipitation 144.3 mm (5.7 in)
1978-08-01	Record daily precipitation	Record daily precipitation 149.9 mm (5.9 in)
2003-05-26	Record daily precipitation	Record daily precipitation 179.8 mm (7.1 in)
2004-06-28	Record daily precipitation	Record daily precipitation 216.9 mm (8.5 in)

Wettest Day of Each Month

Jun: 216.9 mm (8.5 in)

The wettest day on record for each calendar month at Anahuac. The most was 216.9 mm (8.5 in) on 28 June 2004.

Record daily precipitation for each month at Anahuac
Month	Record daily precipitation (mm)	Date
Jan	54.4 mm (2.1 in)	24 January 1961
Feb	62.0 mm (2.4 in)	20 February 1990
Mar	73.9 mm (2.9 in)	10 March 1997
Apr	166.4 mm (6.6 in)	14 April 2010
May	179.8 mm (7.1 in)	26 May 2003
Jun	216.9 mm (8.5 in)	28 June 2004
Jul	100.8 mm (4.0 in)	10 July 2002
Aug	149.9 mm (5.9 in)	1 August 1978
Sep	148.8 mm (5.9 in)	7 September 1986
Oct	140.0 mm (5.5 in)	11 October 2003
Nov	41.4 mm (1.6 in)	30 November 2009
Dec	38.4 mm (1.5 in)	9 December 1982

Period of Record Coverage

1933 to 2011

78 years of record at Anahuac, 1933 to 2011. 14 years have data for under 90 percent of days and are left out of rankings: 1933, 1942, 1943, 1969, 1980, 1982, 1984, 1985 and others.

Days with data per year at Anahuac
Year	Days with data	Share of year	Complete
1933	232	64%	No
1934	333	91%	Yes
1935	359	98%	Yes
1936	361	99%	Yes
1937	359	98%	Yes
1938	363	99%	Yes
1939	361	99%	Yes
1940	361	99%	Yes
1941	359	98%	Yes
1942	211	58%	No
1943	120	33%	No
1944	361	99%	Yes
1945	362	99%	Yes
1946	364	100%	Yes
1947	363	99%	Yes
1948	360	98%	Yes
1949	362	99%	Yes
1950	333	91%	Yes
1951	359	98%	Yes
1952	365	100%	Yes
1953	364	100%	Yes
1954	365	100%	Yes
1955	330	90%	Yes
1956	363	99%	Yes
1957	363	99%	Yes
1958	359	98%	Yes
1959	336	92%	Yes
1960	361	99%	Yes
1961	361	99%	Yes
1962	331	91%	Yes
1963	361	99%	Yes
1964	364	99%	Yes
1965	356	98%	Yes
1966	356	98%	Yes
1967	361	99%	Yes
1968	360	98%	Yes
1969	268	73%	No
1970	362	99%	Yes
1971	331	91%	Yes
1972	331	90%	Yes
1973	360	99%	Yes
1974	358	98%	Yes
1975	359	98%	Yes
1976	355	97%	Yes
1977	362	99%	Yes
1978	359	98%	Yes
1979	361	99%	Yes
1980	302	83%	No
1981	335	92%	Yes
1982	327	90%	No
1983	362	99%	Yes
1984	150	41%	No
1985	265	73%	No
1986	233	64%	No
1987	361	99%	Yes
1988	331	90%	Yes
1989	355	97%	Yes
1990	360	99%	Yes
1991	326	89%	No
1992	361	99%	Yes
1993	364	100%	Yes
1994	358	98%	Yes
1995	358	98%	Yes
1996	362	99%	Yes
1997	362	99%	Yes
1998	360	99%	Yes
1999	361	99%	Yes
2000	359	98%	Yes
2001	338	93%	Yes
2002	345	95%	Yes
2003	322	88%	No
2004	333	91%	Yes
2005	328	90%	No
2006	314	86%	No
2008	332	91%	Yes
2009	328	90%	No
2010	329	90%	Yes
2011	330	90%	Yes

Latest Records

Latest records at Anahuac
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 November 2011	Anahuac, MX	daily high min	20.0 C (68.0 F)	1.1 C (2.0 F)	20 years	15 of 100 (Routine)
21 November 2011	Anahuac, MX	daily high max	33.9 C (93.0 F)	1.1 C (2.0 F)	14 years	13 of 100 (Routine)
7 November 2011	Anahuac, MX	daily high max	35.6 C (96.1 F)	1.7 C (3.1 F)	21 years	16 of 100 (Routine)
2 November 2011	Anahuac, MX	daily high max	35.0 C (95.0 F)	1.1 C (2.0 F)	74 years	31 of 100 (Routine)
17 October 2011	Anahuac, MX	daily high max	37.8 C (100.0 F)	0.6 C (1.1 F)	17 years	13 of 100 (Routine)
9 October 2011	Anahuac, MX	daily high min (Tie)	25.0 C (77.0 F)	tie	28 years	3 of 100 (Routine)
27 September 2011	Anahuac, MX	daily high max (Tie)	40.0 C (104.0 F)	tie	5 years	2 of 100 (Routine)
26 September 2011	Anahuac, MX	daily high max	43.9 C (111.0 F)	3.3 C (5.9 F)	52 years	30 of 100 (Routine)
25 September 2011	Anahuac, MX	daily high max	42.8 C (109.0 F)	1.1 C (2.0 F)	5 years	10 of 100 (Routine)
16 September 2011	Anahuac, MX	daily high min (Tie)	25.0 C (77.0 F)	tie	64 years	6 of 100 (Routine)
15 September 2011	Anahuac, MX	daily high min (Tie)	25.0 C (77.0 F)	tie	64 years	6 of 100 (Routine)
14 September 2011	Anahuac, MX	daily high max	40.6 C (105.1 F)	0.6 C (1.1 F)	60 years	26 of 100 (Routine)
3 September 2011	Anahuac, MX	daily high max (Tie)	41.7 C (107.1 F)	tie	10 years	2 of 100 (Routine)
30 August 2011	Anahuac, MX	daily high max (Tie)	40.6 C (105.1 F)	tie	61 years	6 of 100 (Routine)
29 August 2011	Anahuac, MX	daily high max	41.7 C (107.1 F)	1.1 C (2.0 F)	61 years	28 of 100 (Routine)
28 August 2011	Anahuac, MX	daily high max	42.8 C (109.0 F)	0.6 C (1.1 F)	70 years	30 of 100 (Routine)
25 August 2011	Anahuac, MX	daily high max (Tie)	40.6 C (105.1 F)	tie	76 years	7 of 100 (Routine)
23 August 2011	Anahuac, MX	daily high max (Tie)	40.6 C (105.1 F)	tie	17 years	3 of 100 (Routine)
12 August 2011	Anahuac, MX	daily high max (Tie)	41.7 C (107.1 F)	tie	12 years	2 of 100 (Routine)
11 August 2011	Anahuac, MX	daily high max	42.8 C (109.0 F)	1.1 C (2.0 F)	62 years	28 of 100 (Routine)

Climate Trend

48 complete years, 1935 to 2000

One stripe for each of 48 complete years at Anahuac, 1935 to 2000. Blue stripes are years cooler than the station's own mean of 22.7 C (72.9 F); red stripes are warmer. The coolest year was 1976, at 21.0 C (69.8 F), and the warmest was 1998, at 24.7 C (76.5 F). The strongest colour marks a difference of 2.1 C (3.8 F).

Annual mean temperature at Anahuac as warming stripes, 1935 to 2000
Year	Annual mean temperature	Difference from the station mean
1935	22.5 C	-0.25 C
1936	21.7 C	-1.07 C
1937	22.7 C	+0.00 C
1938	23.2 C	+0.51 C
1939	23.5 C	+0.81 C
1940	22.3 C	-0.46 C
1941	22.7 C	-0.05 C
1944	23.3 C	+0.53 C
1945	24.2 C	+1.52 C
1946	24.0 C	+1.26 C
1947	22.7 C	-0.06 C
1948	22.9 C	+0.13 C
1949	23.0 C	+0.26 C
1952	22.5 C	-0.19 C
1953	23.0 C	+0.24 C
1954	23.0 C	+0.29 C
1956	22.9 C	+0.22 C
1957	21.2 C	-1.49 C
1958	21.3 C	-1.44 C
1960	22.2 C	-0.50 C
1961	22.0 C	-0.71 C
1963	22.5 C	-0.27 C
1964	22.6 C	-0.09 C
1965	22.9 C	+0.14 C
1966	21.3 C	-1.45 C
1967	22.0 C	-0.76 C
1968	21.4 C	-1.33 C
1970	22.4 C	-0.37 C
1973	21.8 C	-0.96 C
1974	22.0 C	-0.74 C
1975	22.1 C	-0.67 C
1976	21.0 C	-1.70 C
1977	22.4 C	-0.37 C
1978	21.8 C	-0.93 C
1979	21.7 C	-1.00 C
1983	22.7 C	-0.06 C
1987	21.8 C	-0.95 C
1989	23.3 C	+0.57 C
1990	23.9 C	+1.16 C
1992	23.2 C	+0.46 C
1993	23.3 C	+0.60 C
1994	24.1 C	+1.39 C
1995	24.1 C	+1.42 C
1996	23.8 C	+1.03 C
1997	22.9 C	+0.15 C
1998	24.7 C	+2.02 C
1999	24.4 C	+1.69 C
2000	24.1 C	+1.33 C

The fitted trend in annual mean temperature here over 1935 to 2000 is 0.12 C (-0.01 to 0.25) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.21 F (-0.02 to 0.45) per decade. The slope is a straight line fitted to 48 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Anahuac
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.12 C (-0.01 to 0.25) per decade	0.21 F (-0.02 to 0.45) per decade	1935 to 2000	48	Not clearly different from zero
Mean daily maximum	0.03 C (-0.15 to 0.21) per decade	0.1 F (-0.3 to 0.4) per decade	1935 to 2000	48	Not clearly different from zero
Mean daily minimum	0.2 C (0.1 to 0.3) per decade	0.4 F (0.2 to 0.6) per decade	1935 to 2000	48	Rise

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1933 to 2011

Yearly extremes at Anahuac: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	48.3 C (118.9 F)	1947	42.2 C (108.0 F)	78
Coldest night (TNn)	-11.1 C (12.0 F)	1962	-2.8 C (27.0 F)	78
Wettest day (Rx1day)	216.9 mm (8.5 in)	2004	68.8 mm (2.7 in)	78
Wettest five days (Rx5day)	312.0 mm (12.3 in)	1971	93.9 mm (3.7 in)	78
Longest dry spell (CDD)	117 days	2011	55 days	78

Hottest day (TXx)

The hottest day of the year at Anahuac, 1933 to 2011. The record is 48.3 C (118.9 F) in 1947, marked on the chart; the median year is 42.2 C (108.0 F).

Hottest day (TXx) at Anahuac by year
Year	Hottest day (TXx)
1933	41.1 C (106.0 F)
1934	40.6 C (105.1 F)
1935	40.6 C (105.1 F)
1936	41.1 C (106.0 F)
1937	43.9 C (111.0 F)
1938	41.7 C (107.1 F)
1939	43.9 C (111.0 F)
1940	42.2 C (108.0 F)
1941	42.8 C (109.0 F)
1942	47.8 C (118.0 F)
1943	41.1 C (106.0 F)
1944	43.9 C (111.0 F)
1945	45.0 C (113.0 F)
1946	44.4 C (111.9 F)
1947	48.3 C (118.9 F)
1948	45.6 C (114.1 F)
1949	45.0 C (113.0 F)
1950	47.8 C (118.0 F)
1951	41.7 C (107.1 F)
1952	41.1 C (106.0 F)
1953	42.2 C (108.0 F)
1954	43.9 C (111.0 F)
1955	41.1 C (106.0 F)
1956	41.7 C (107.1 F)
1957	41.7 C (107.1 F)
1958	41.7 C (107.1 F)
1959	41.7 C (107.1 F)
1960	45.0 C (113.0 F)
1961	39.4 C (102.9 F)
1962	41.7 C (107.1 F)
1963	41.7 C (107.1 F)
1964	41.1 C (106.0 F)
1965	40.0 C (104.0 F)
1966	40.0 C (104.0 F)
1967	40.0 C (104.0 F)
1968	40.6 C (105.1 F)
1969	42.8 C (109.0 F)
1970	43.3 C (109.9 F)
1971	42.2 C (108.0 F)
1972	40.0 C (104.0 F)
1973	43.9 C (111.0 F)
1974	42.2 C (108.0 F)
1975	42.2 C (108.0 F)
1976	38.9 C (102.0 F)
1977	40.0 C (104.0 F)
1978	40.0 C (104.0 F)
1979	42.2 C (108.0 F)
1980	42.8 C (109.0 F)
1981	41.1 C (106.0 F)
1982	41.1 C (106.0 F)
1983	43.9 C (111.0 F)
1984	43.9 C (111.0 F)
1985	42.8 C (109.0 F)
1986	43.3 C (109.9 F)
1987	40.6 C (105.1 F)
1988	43.3 C (109.9 F)
1989	43.3 C (109.9 F)
1990	43.9 C (111.0 F)
1991	42.8 C (109.0 F)
1992	45.0 C (113.0 F)
1993	42.8 C (109.0 F)
1994	42.8 C (109.0 F)
1995	45.0 C (113.0 F)
1996	42.8 C (109.0 F)
1997	42.2 C (108.0 F)
1998	45.0 C (113.0 F)
1999	42.8 C (109.0 F)
2000	44.4 C (111.9 F)
2001	41.7 C (107.1 F)
2002	43.3 C (109.9 F)
2003	43.9 C (111.0 F)
2004	41.7 C (107.1 F)
2005	41.7 C (107.1 F)
2006	41.7 C (107.1 F)
2008	42.2 C (108.0 F)
2009	41.1 C (106.0 F)
2010	40.6 C (105.1 F)
2011	44.4 C (111.9 F)

Coldest night (TNn)

The coldest night of the year at Anahuac, 1933 to 2011. The record is -11.1 C (12.0 F) in 1962, marked on the chart; the median year is -2.8 C (27.0 F).

Coldest night (TNn) at Anahuac by year
Year	Coldest night (TNn)
1933	-2.2 C (28.0 F)
1934	-1.7 C (28.9 F)
1935	-1.7 C (28.9 F)
1936	-3.3 C (26.1 F)
1937	-2.2 C (28.0 F)
1938	-1.1 C (30.0 F)
1939	-0.6 C (30.9 F)
1940	-5.0 C (23.0 F)
1941	-0.6 C (30.9 F)
1942	-1.1 C (30.0 F)
1943	-1.7 C (28.9 F)
1944	-1.1 C (30.0 F)
1945	-2.8 C (27.0 F)
1946	-1.1 C (30.0 F)
1947	-3.3 C (26.1 F)
1948	-3.3 C (26.1 F)
1949	-6.7 C (19.9 F)
1950	-3.9 C (25.0 F)
1951	-10.0 C (14.0 F)
1952	0.0 C (32.0 F)
1953	-5.0 C (23.0 F)
1954	0.0 C (32.0 F)
1955	-2.2 C (28.0 F)
1956	-3.3 C (26.1 F)
1957	-2.2 C (28.0 F)
1958	0.0 C (32.0 F)
1959	-2.2 C (28.0 F)
1960	-4.4 C (24.1 F)
1961	-2.2 C (28.0 F)
1962	-11.1 C (12.0 F)
1963	-8.3 C (17.1 F)
1964	-4.4 C (24.1 F)
1965	-0.6 C (30.9 F)
1966	-6.1 C (21.0 F)
1967	-2.8 C (27.0 F)
1968	-2.2 C (28.0 F)
1969	-3.9 C (25.0 F)
1970	-5.0 C (23.0 F)
1971	-1.7 C (28.9 F)
1972	-2.8 C (27.0 F)
1973	-7.2 C (19.0 F)
1974	-2.2 C (28.0 F)
1975	-8.3 C (17.1 F)
1976	-3.3 C (26.1 F)
1977	-3.3 C (26.1 F)
1978	-4.4 C (24.1 F)
1979	-5.0 C (23.0 F)
1980	-3.9 C (25.0 F)
1981	-5.0 C (23.0 F)
1982	-5.0 C (23.0 F)
1983	-10.0 C (14.0 F)
1984	-4.4 C (24.1 F)
1985	-6.1 C (21.0 F)
1986	-5.0 C (23.0 F)
1987	-1.1 C (30.0 F)
1988	-2.8 C (27.0 F)
1989	-8.3 C (17.1 F)
1990	-2.8 C (27.0 F)
1991	1.7 C (35.1 F)
1992	-1.1 C (30.0 F)
1993	-1.1 C (30.0 F)
1994	-1.1 C (30.0 F)
1995	2.2 C (36.0 F)
1996	-5.0 C (23.0 F)
1997	-2.2 C (28.0 F)
1998	0.0 C (32.0 F)
1999	-2.8 C (27.0 F)
2000	-0.6 C (30.9 F)
2001	-5.0 C (23.0 F)
2002	-2.2 C (28.0 F)
2003	-4.4 C (24.1 F)
2004	-1.1 C (30.0 F)
2005	-0.6 C (30.9 F)
2006	0.0 C (32.0 F)
2008	-2.2 C (28.0 F)
2009	-0.6 C (30.9 F)
2010	-5.0 C (23.0 F)
2011	-6.7 C (19.9 F)

Wettest day (Rx1day)

The wettest day of the year at Anahuac, 1933 to 2011. The record is 216.9 mm (8.5 in) in 2004, marked on the chart; the median year is 68.8 mm (2.7 in).

Wettest day (Rx1day) at Anahuac by year
Year	Wettest day (Rx1day)
1933	60.5 mm (2.4 in)
1934	48.8 mm (1.9 in)
1935	90.2 mm (3.6 in)
1936	39.9 mm (1.6 in)
1937	31.8 mm (1.3 in)
1938	88.6 mm (3.5 in)
1939	59.9 mm (2.4 in)
1940	82.3 mm (3.2 in)
1941	118.9 mm (4.7 in)
1942	46.5 mm (1.8 in)
1943	42.4 mm (1.7 in)
1944	66.8 mm (2.6 in)
1945	81.8 mm (3.2 in)
1946	73.4 mm (2.9 in)
1947	43.9 mm (1.7 in)
1948	93.0 mm (3.7 in)
1949	98.8 mm (3.9 in)
1950	45.0 mm (1.8 in)
1951	39.9 mm (1.6 in)
1952	54.9 mm (2.2 in)
1953	54.4 mm (2.1 in)
1954	52.3 mm (2.1 in)
1955	72.9 mm (2.9 in)
1956	49.8 mm (2.0 in)
1957	65.3 mm (2.6 in)
1958	113.3 mm (4.5 in)
1959	94.5 mm (3.7 in)
1960	33.3 mm (1.3 in)
1961	92.5 mm (3.6 in)
1962	69.3 mm (2.7 in)
1963	59.9 mm (2.4 in)
1964	104.9 mm (4.1 in)
1965	67.8 mm (2.7 in)
1966	68.8 mm (2.7 in)
1967	77.5 mm (3.1 in)
1968	76.5 mm (3.0 in)
1969	102.4 mm (4.0 in)
1970	40.4 mm (1.6 in)
1971	144.3 mm (5.7 in)
1972	43.4 mm (1.7 in)
1973	67.3 mm (2.6 in)
1974	118.4 mm (4.7 in)
1975	59.4 mm (2.3 in)
1976	84.3 mm (3.3 in)
1977	45.5 mm (1.8 in)
1978	149.9 mm (5.9 in)
1979	61.5 mm (2.4 in)
1980	72.9 mm (2.9 in)
1981	112.3 mm (4.4 in)
1982	62.0 mm (2.4 in)
1983	49.3 mm (1.9 in)
1984	77.5 mm (3.1 in)
1985	99.3 mm (3.9 in)
1986	148.8 mm (5.9 in)
1987	73.9 mm (2.9 in)
1988	102.9 mm (4.1 in)
1989	22.4 mm (0.9 in)
1990	62.0 mm (2.4 in)
1991	58.4 mm (2.3 in)
1992	68.8 mm (2.7 in)
1993	63.0 mm (2.5 in)
1994	59.9 mm (2.4 in)
1995	55.9 mm (2.2 in)
1996	59.4 mm (2.3 in)
1997	73.9 mm (2.9 in)
1998	37.8 mm (1.5 in)
1999	127.3 mm (5.0 in)
2000	69.3 mm (2.7 in)
2001	55.4 mm (2.2 in)
2002	100.8 mm (4.0 in)
2003	179.8 mm (7.1 in)
2004	216.9 mm (8.5 in)
2005	128.3 mm (5.1 in)
2006	127.8 mm (5.0 in)
2008	71.4 mm (2.8 in)
2009	41.4 mm (1.6 in)
2010	166.4 mm (6.6 in)
2011	51.8 mm (2.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Anahuac, 1933 to 2011. The record is 312.0 mm (12.3 in) in 1971, marked on the chart; the median year is 93.9 mm (3.7 in).

Wettest five days (Rx5day) at Anahuac by year
Year	Wettest five days (Rx5day)
1933	85.7 mm (3.4 in)
1934	48.8 mm (1.9 in)
1935	170.8 mm (6.7 in)
1936	83.9 mm (3.3 in)
1937	43.5 mm (1.7 in)
1938	88.6 mm (3.5 in)
1939	67.8 mm (2.7 in)
1940	102.1 mm (4.0 in)
1941	118.9 mm (4.7 in)
1942	64.3 mm (2.5 in)
1943	49.6 mm (2.0 in)
1944	105.4 mm (4.1 in)
1945	86.6 mm (3.4 in)
1946	102.1 mm (4.0 in)
1947	101.1 mm (4.0 in)
1948	121.0 mm (4.8 in)
1949	103.6 mm (4.1 in)
1950	73.0 mm (2.9 in)
1951	54.4 mm (2.1 in)
1952	54.9 mm (2.2 in)
1953	140.6 mm (5.5 in)
1954	65.3 mm (2.6 in)
1955	85.1 mm (3.4 in)
1956	49.8 mm (2.0 in)
1957	68.6 mm (2.7 in)
1958	131.7 mm (5.2 in)
1959	148.6 mm (5.9 in)
1960	48.3 mm (1.9 in)
1961	92.8 mm (3.7 in)
1962	74.4 mm (2.9 in)
1963	64.5 mm (2.5 in)
1964	112.5 mm (4.4 in)
1965	112.5 mm (4.4 in)
1966	169.0 mm (6.7 in)
1967	121.4 mm (4.8 in)
1968	94.0 mm (3.7 in)
1969	117.4 mm (4.6 in)
1970	61.3 mm (2.4 in)
1971	312.0 mm (12.3 in)
1972	84.8 mm (3.3 in)
1973	92.7 mm (3.6 in)
1974	155.5 mm (6.1 in)
1975	152.4 mm (6.0 in)
1976	162.8 mm (6.4 in)
1977	57.7 mm (2.3 in)
1978	164.4 mm (6.5 in)
1979	121.2 mm (4.8 in)
1980	134.9 mm (5.3 in)
1981	177.5 mm (7.0 in)
1982	93.1 mm (3.7 in)
1983	49.3 mm (1.9 in)
1984	117.8 mm (4.6 in)
1985	136.6 mm (5.4 in)
1986	149.9 mm (5.9 in)
1987	161.6 mm (6.4 in)
1988	102.9 mm (4.1 in)
1989	38.4 mm (1.5 in)
1990	81.0 mm (3.2 in)
1991	77.2 mm (3.0 in)
1992	75.8 mm (3.0 in)
1993	79.5 mm (3.1 in)
1994	59.9 mm (2.4 in)
1995	61.7 mm (2.4 in)
1996	103.5 mm (4.1 in)
1997	76.7 mm (3.0 in)
1998	41.4 mm (1.6 in)
1999	163.1 mm (6.4 in)
2000	86.7 mm (3.4 in)
2001	108.8 mm (4.3 in)
2002	104.9 mm (4.1 in)
2003	203.4 mm (8.0 in)
2004	254.7 mm (10.0 in)
2005	128.3 mm (5.1 in)
2006	129.1 mm (5.1 in)
2008	92.2 mm (3.6 in)
2009	41.7 mm (1.6 in)
2010	208.1 mm (8.2 in)
2011	93.7 mm (3.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Anahuac, 1933 to 2011. The record is 117 days in 2011, marked on the chart; the median year is 55 days.

Longest dry spell (CDD) at Anahuac by year
Year	Longest dry spell (CDD)
1933	46 days
1934	45 days
1935	26 days
1936	59 days
1937	45 days
1938	61 days
1939	48 days
1940	33 days
1941	56 days
1942	47 days
1943	22 days
1944	46 days
1945	64 days
1946	42 days
1947	98 days
1948	47 days
1949	36 days
1950	48 days
1951	69 days
1952	67 days
1953	71 days
1954	36 days
1955	39 days
1956	58 days
1957	39 days
1958	38 days
1959	56 days
1960	35 days
1961	58 days
1962	71 days
1963	60 days
1964	34 days
1965	54 days
1966	78 days
1967	42 days
1968	35 days
1969	53 days
1970	75 days
1971	67 days
1972	43 days
1973	58 days
1974	53 days
1975	63 days
1976	71 days
1977	65 days
1978	90 days
1979	65 days
1980	68 days
1981	67 days
1982	69 days
1983	47 days
1984	29 days
1985	81 days
1986	83 days
1987	31 days
1988	61 days
1989	54 days
1990	61 days
1991	39 days
1992	40 days
1993	61 days
1994	29 days
1995	50 days
1996	53 days
1997	35 days
1998	86 days
1999	84 days
2000	30 days
2001	47 days
2002	63 days
2003	34 days
2004	56 days
2005	65 days
2006	65 days
2008	45 days
2009	61 days
2010	65 days
2011	117 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

36 years with a frost

Across 36 years with a frost, the median last spring frost at Anahuac falls on 10 February and the median first autumn frost on 11 December, which leaves a median of 296 days between them.

Fitted over all years, the growing season changes by -3.5 days per decade at this station.

Frost dates and growing season at Anahuac
Measure	Median, all years	Earliest period	Recent period (1946 to 1999)	Recent against earliest	Fitted trend
Last spring frost	10 February	n/a	11 February	n/a	+4.1 days per decade
First autumn frost	11 December	n/a	12 December	n/a	+0.7 days per decade
Growing days	296 days	n/a	290 days	n/a	-3.5 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

66 years, 1934 to 2011

A day with at least 67.2 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 191.0 mm (7.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Anahuac: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	67.2 mm (2.6 in)
5 years	94.9 mm (3.7 in)
10 years	115.2 mm (4.5 in)
25 years	143.4 mm (5.6 in)
50 years	166.3 mm (6.5 in)
100 years	191.0 mm (7.5 in)	Longer than the 66 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 66 years of values from 1934 to 2011.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 216.9 mm (8.5 in) in 2004; 149.9 mm (5.9 in) in 1978; 144.3 mm (5.7 in) in 1971.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Anahuac, at 1968. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1968 ran 0.5 C (0.8 F) higher than in the years before (possible change).

Suspected changes in the annual mean temperature at Anahuac, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1968	+0.5	+0.8	possible	5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Download the Data

Data for Anahuac standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Anahuac threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).